Two equal negative charges are fixed at points and on - axis
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Two equal negative charges −q are fixed at points (0,−a) and (0,a) on y - axis. A positive charge Q is released from rest at the point (2a,0) on the x - axis. The charge Q will
(1) execute simple harmonic motion about the origin
(2) move to the origin remain at rest
(3) move to infinity
(4) execute oscillatory but not simple harmonic motion